Ore-concentrator.



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lllOuuilOl libOllxlllO. 1|! .xlll .lill .l nl A v n E. MISTER. CONCENTRATUR.

PPLUTIO' FILED JUNE 23, 195i.

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EMIL DEISTER, OF FORT WAYNE, INDIANA, AFSIGNOR TG THE DEISTER.

COMPANY, .5. CORPORATION OP ISDIASA.

COXCINTRATOR ORE-CONCENTRA'I'OR.

specification of -Lf-.ccew Patent.'

Patented Aug. 4, 190s.

Application mea zum. 23, isos. sensi Nojszsgeo.

T o all whom it may concern:

Be it. known that I, limi. Deis'rnn, a citizen of the United States of America, and resident of Fort lliayne., in the county of Allen and State of lndiann, have invented certain new and useful improvements in Oie-Ctmcentrators, of which the following is a. specification. l

'l-lns invention relates to improvements in ore concentrators, and thel objects thereof 1 are, first: to construct a machine. of its class of less size and weight as compared with ordinary coneent-rators, and at the. same' time capable of elliciently treating an equal quantity of ore matter; and second: to so construct the machine as to compensate for variations in the nantity of material fed to the machine, witiout thc seriousV loss of mineral which ordinarily occurs when tables of ordinary construction become overloaded. The first' object is accomplished irincipally by the form and arrangement of tlie table. in connection with its various parts; and tn.. second object is attained chiefly by the peculiarly constrncted feed box and the manner of distributing thc feed umn the table. The construction by which these objects are attained is illustrated by the accompanying drawings in which Figure 1 is a plan View of this invent-ion; Fig. 2 is a transverse section of the saine on the line :awr of Fig. 1; Fig. 3 is a detail View showing a transverse section through a portion of the table and the feed box on the line Y; Fig. 4 is a detail View in persnective showing the bucking board and that portion of the table, which lies adjacent thereto; and Fig. 5 is a detail showing,r a side, View of one of the rilllcs, somewhat exaggerated in height.

Similar numerals of reference indicate corresponding par ts throughout the several views, and referrinfr now to the same: 1 is a concentrating t lle having at one side thereof an upwardly projecting head-board 2, and along its rear end a similarly pro jecting breast-board 3. The opposite sides of the table nre parallel and the rear end of the table ranges in a line oblique to the sides i thereof, as also does a portion of its mineral discharge. edge 4. An upwardly projecting bucking-board 5 extends along a part of the fore end of the table adjacent to and connecting with the corresponding end of the head-board and, in effect., forms a continnntion of the latter. That ortion of the bucking-bond adjacent the head-board 2 ranges at a sharper angle respecting the lat-ter than does the other portion G thereof which extends to the mineral discharge edge l of the table. At. the juncture of the buoi:- inv-board and the adjacentsnrface. of the ta ile is secured a shoal which serves to spread dress g water fed thereon.

Upon the si rface of the table is arranged a series of ri .es S all of which are parallel with the sides of the table, and each riflleextends across the eorrespor ing surface of the table to the opposite end thereof. These rirlies taper from their rear ends toward their forward ends, and each has an off-set 9 where itdeere es suddenly in height. The respective nii-sets of the ritfles are located a iproxilnately on the line Z--Z. Thus it will lie understood that the. section of the table bin-dering its forward edge has shallow rifles thereon, each of which is a continuation of the corresponding riflle on the rear portion of the table.

A feed box 1U is secured over that portion of the table adiseent the head-board 2', and n.

vertical partition 11' extends lengthwise in` sage-way 12 for ulp to flow from 'its one section 13 to the ot er section 14 tnereof. The bottom of the feed box ranges upon a gradual descent from the rear end of the section 13 to the passage way 112, and from thence to the rear end of the section 14. and that portion of the bot-tom in the section 1- 'slants trans- Yersely dowward toward the partition 11. A passage wrijf 15 is made in the outer wall of the. feed box sdjneent the rear end of seotion 14, and s iaunder 1G is secured to the breast-board 3 and is connected with the feed box to receive the overflow therefrom through said passage wny 15. A series of openings 1T are mede in the bot-tom of the feed box in s. Eine adjacent the partition 1 1, and otheropenings 1S are made in the bottom of the feed box at its forward end. An apron 19 is secured to the bottoni of the feed box beneath t e o ienings 17, and serves to direct material oiseharged toward the he@ -board '2. A series of diagonal ritiles 2f) :are arranged upon the. bottom therethrough i z l i t l to direct underlyin of the section 13 of thefeed box which serve (f mineral toward the open'- ing 1S nearest the'liead-board.

vThe table is supported from-beneath at points indicated at 21--21 and 22-22, at the atter by hierscef-niovable posts 23, and at the former by rockint stamlards 24. The posts 23 are respectivey supported u )on oppositelydis )osed wedges 25A inounte in co1- responding ase castings 26, and the wedges are connected together by a. ro 27 by means of which they are moved in unity. An adjusting shaft 2S is supported by brackets '29 which extend from the side of the base 30, and upon said shaft is fixed a lever 31 and a depending arm 32, the lower end if the latter having connection with the wedges 25 to aetuate the same. Thus itwill appear that by moving the lever 31, the table will be given more or less longitudinal incline. Thestandards 24 are made wide at the base and are mounted upon castings 33, and are adapted to permit longitudinal-:action of the table and prevent lateralinotion thereof. Each of the standards 24 has an adjust-able screw ost 34 by means of which the table may be a( justed to have more or lesslateral decline. The table thus mounted is connected, by means of a driving rod 35, with a suitable actuating mechanism 36 such as to impart differential reciproeat-ingmotion to the table.

In the operation of this invention, pulp is fed tothe feed box at the rear end of seetion 13, from whence it passes over the riflles 20 therein, through the passage way l2 into the section 14, and while so passing', more or less of the mineral portion of the pnl is directed by the ritiles 220 so as to .pass tlirouvh the openings 1S, and the other ,ortion of the pulp 1s discharged from the feet box through the o enings 1l except surplus wat-erwhich overf ows through the passage-way 15 and is carried by the` launder 1G to the tailings discharge side of the table. By this operation the heaviest and cleancst portion of the minera-l is fed to the table at. points nearest its forward end, while the lighter mineral and )nlp is cariiedthrough the openings 17 and deposited u on the table along the headf board which is tiirthest frox'the tailings discharge side of the table. The motion of the table and the arrangen'ient of' riflles thereon are such as to cause the mineral to more toward the forward end of the table, and that portion thereof which comes into contact with the bueliit'ig-board is subjected to more or less vigorous action because of the obstruction afforded thereby, which affects a tendency to displace the sand -wlnle the vmineral passes along the lmcki11gboa1d toward the mineral edge -1 over which it is discharged into the mineral launder 37. The portlon 6 of thebuckmg-board acts upon the adjacent mineral with less force than the angle to the direct-ion of driving motion, and

in passing'ehmg the Shoal 7 themineral is treated by the action of dressing water which is suitably fed upon the Shoal and u on the table along the mineral discharge edge 4 thereof.

l'lhe ott-sets of the rifllcs afford relief for the overls'ing gangue so that it vtends to more dowmrardly toward the tailings discharge side of the table, while the underlying mineral )ortica of the pulp, thus relieved of the overlying gangue, is carried by the shallow extensions of' the riflies outward to the mineral lannder, and while beinv directedby said extensions, is'treated to the action of dressingfwater and thereby further relieved of gangue. By providing an overfiow outlet for surplus water from the feed box and conducting it therefrom without discharging it u )onthe table, the body of pulp upon the tabl'e is not affected vtherehy and the variations'in the quantity of material fed upon the table is not so pronounced es would otherwise be the ease, and consequently a corresponding improvement in the treatment of effected.

Having described my invention what I claim as new and desire to 4secure by Letters Patent isz- 1. In an ore eoncentrator, a shaking table having an oblique forward end a shea along art of said end of the table adjacent the` -to the concertrates discrharge edge of the table.

2. In an ore concentrator, a shaking table having an oblique forward end and an upward projection extending along its rear end,

feed side, and part-amy along its forward end adjacent its feed side; a shoal adjacent the projection at the. forward end of the table extendiinr to the concentrates discharge viortion rherco and a series of rifilcs. those a( jacent the shoal terminating at its inner edge, and the other riiies extending beyond the Shoal i0 the concentrates discharge edge of the table.

3. In an ore eoncentrator, a shaking table; a feed box secured to the table having feed openings adapted to discharffe onto thetable; and having also an overfiow outlet; and means in connection with the overflow outlet to convey the overflow therefrom away from the table.

4. In an ore concentrator, a shaking table; and a feed box in connection with the table, having two parallel sections with a passageway connecting the sections at their forward ends, the bottom of the feed box ranging upon a gradual decline from the rear end of the outer' section to said passage way and other portion thereof, because of its lesser i from thence to the rear end of the inner secpulp istion, and having also feed o enings at its forward end, the inner section iiaving feed openings along the side thereof adjacent the outer section and also an overflow outlet at its rear end.

5. In an ore concentrator, a shaking table; and a feed box connected to the table, iaving two com )artinents which communicate with one anotlier at their forward ends,.and riflles on its bottoni adapted to direct underlying mineral toward Said openings, the inner section having an overow'outlet near its rear end, and a series of, feed openings located between its overflow outlet and its forward end.

6. In an ore concentrator, a shaking table; and' a. feed box connected to the table, .having a. central longitudinal partition dividing it into sect-ions which communicate with one another at their forward ends, the feed box having also feed openings, and the inner section thereof having an overflow outlet.

7. Iii an ore concentiator, a shaking table having a feed box extending along its head side, the said feed box having feed openings in its bottom and an overflow outlet through its inner side; and a lauiuler leading from said overflow outlet to the tailings enrof the table where it is adapted to discharge the overflow from -said feed box.

S. 1n an ore eoneentrator, a shaking table; and a feed box connected to the table, iaving a partition which divides the feed box vertically into two longitudinal sections which communicate with one another at their forward ends by means of a lateral passage-way, and having feed openings near the end of its outer section and a series of feedopenings leading from its inner section.

9. 1n an ore coneentrator, a shaking table; a feed box connected tothe table, having a.

vvertical partition dividing it into two longiiiflles in the outer section adapted to direct underlying niineral therein toward the feed openings at the forward end of the feed box. 10. 1n an ore concentrator, a shaking table; and a feed box connected to the table, having a vertical partition, and also feed openings at its forward end; means todirect underlying niineral in the feed box toward said openings, the feed box having also another sezies of feed openings which are sheltered from the former feed openings by said partition.

In testimony whereof I affix my signature, in presence of two witnesses.

EMIL DlElS'IElt.A 'itnesses:

MATHILDA ME'ITLER, W. G. BURNS. 

